Modaete yo, Adam-kun Episodio 1

Writhe in agony, Adam-kun. This is the tale of the one and only Adam, who faces four billion Eves. In a world where everyone has had ED because of a pandemic, Kazuki, a male student, is the only unique individual who has managed to avoid ED. If I find out, I do not want to spend the rest of my life as a guinea pig. To keep his secret safe, he moves to a harem school full of women!? A friendly and kind senior, a frustrated female teacher, the school's prince, the daughter of a wealthy family, what will Kazuki, who can captivate any woman, choose?